CAREER: Cost-Effective Application Deployments Spanning Multiple Cloud Services

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The use of cloud computing services---services that host infrastructure on which third-parties can run applications and store data---has skyrocketed in the last few years. However, despite the growing number of cloud services, most applications are deployed today on a single cloud service. This status quo has severaldrawbacks---availability and performance offered by an application are limitedby the cloud service on which the application is deployed, and cost borne byan application provider to meet performance goals is limited by the types andpricing of resources offered by that service.This research project will enable distributed applications to obtain betteravailability and performance at lower cost by planning and managing application deployments that span multiple cloud services. Recognizing the fact that differentcomponents of an application have different characteristics, this project willenable cost-effective multi-cloud deployments by matching the heterogeneity ofan application's components with the diversity of resources offered bydifferent cloud services. The research in this project involves three maintasks---1) the development of algorithms to choose cost-effectively among the myriad candidate configurations for deploying an application across cloud services, 2) the design and implementation of a distributed measurement and monitoring framework to dynamically reconfigure an application's deployment asthe state of cloud services and of the Internet change over time, and 3) thedevelopment of tools and techniques that enable legacy applications implemented for deployment on a single cloud service to be easily ported to multi-cloud deployments. The research will involve significantsystems-building and experimentation with the proposed techniques applied todeployments of popular applications on real cloud services.Broader Impact:In spite of the increasing popularity of cloud services, there remain severalconcerns about their use. The algorithms and software systems developed aspart of this research may transform the ways in which application providersuse cloud services, thus easing concerns with respect to availability andperformance. The project also has a significant education component with theintroduction of new graduate and undergraduate classes, and public talks toincrease awareness about cloud services among small and non-profit businesses.